Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 245 · 40 questions

Memory tip (Fewer, bigger pieces): Split long numbers into groups of 3 or 4: a 10-digit phone number as 3-3-4; a 12-digit number as 4-4-4. Dates: 2 digits for the day, 2 for the month, 4 for the year: 26011950 → 26/01/1950. Check every digit stays in the same order — chunks group digits, they never change them.

1. 1.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
2. 2.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
3. 3.📅 The digits 25121969 are a date: day, month, year. Which chunking shows the date? (a) 2512/19/69 (b) 25/12/1969 (c) 251/219/69 (d) 25/1219/69
4. 4.📅 The digits 18101965 are a date: day, month, year. Which chunking shows the date? (a) 1810/19/65 (b) 181/019/65 (c) 18/1019/65 (d) 18/10/1965
5. 5.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it is printed bigger (c) it has fewer digits (d) three chunks, not ten
6. 6.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) only pictures (d) nothing at all
7. 7.🔢 What is chunking? (a) saying it backwards (b) writing it twice (c) reading very fast (d) splitting into groups
8. 8.🔢 A chunk is easiest to keep when it… (a) is very long (b) means something to you (c) has no pattern (d) changes daily
9. 9.🔢 You want to remember the number 954916401152. Which chunked version keeps every digit in the same order? (a) 9549 1640 11152 (b) 9549 1640 1512 (c) 9549 1640 115 (d) 9549 1640 1152
10. 10.📅 The digits 13081986 are a date: day, month, year. Which chunking shows the date? (a) 130/819/86 (b) 13/0819/86 (c) 1308/19/86 (d) 13/08/1986
11. 11.🔢 You want to remember the number 1531172009. Which chunked version keeps every digit in the same order? (a) 115 311 72009 (b) 153 117 009 (c) 153 117 2009 (d) 153 117 2090
12. 12.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 and 947 (c) 19 and 47 (d) 1 9 4 7
13. 13.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
14. 14.📅 The digits 14101963 are a date: day, month, year. Which chunking shows the date? (a) 14/10/1963 (b) 141/019/63 (c) 14/1019/63 (d) 1410/19/63
15. 15.🔢 You want to remember the number 532460078. Which chunked version keeps every digit in the same order? (a) 532 460 087 (b) 532 446 0078 (c) 532 460 078 (d) 532 460 78
16. 16.📅 The digits 02031979 are a date: day, month, year. Which chunking shows the date? (a) 02/0319/79 (b) 020/319/79 (c) 02/03/1979 (d) 0203/19/79
17. 17.📅 The digits 20121986 are a date: day, month, year. Which chunking shows the date? (a) 201/219/86 (b) 20/1219/86 (c) 20/12/1986 (d) 2012/19/86
18. 18.🔢 You want to remember the number 719890292606. Which chunked version keeps every digit in the same order? (a) 7198 9029 26606 (b) 7199 8029 2606 (c) 7198 9029 2606 (d) 7198 9092 606
19. 19.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
20. 20.🔢 You want to remember the number 2741136160. Which chunked version keeps every digit in the same order? (a) 274 113 36160 (b) 274 113 6160 (c) 241 136 160 (d) 274 113 6106
21. 21.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
22. 22.📅 The digits 02081951 are a date: day, month, year. Which chunking shows the date? (a) 02/08/1951 (b) 020/819/51 (c) 02/0819/51 (d) 0208/19/51
23. 23.📅 The digits 09111961 are a date: day, month, year. Which chunking shows the date? (a) 091/119/61 (b) 09/11/1961 (c) 09/1119/61 (d) 0911/19/61
24. 24.🔢 You want to remember the number 581300233778. Which chunked version keeps every digit in the same order? (a) 5183 0023 3778 (b) 5810 0233 778 (c) 5813 0002 33778 (d) 5813 0023 3778
25. 25.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
26. 26.🔢 You want to remember the number 1417391028. Which chunked version keeps every digit in the same order? (a) 114 173 91028 (b) 141 739 102 (c) 141 739 1028 (d) 141 739 0128
27. 27.🔢 You want to remember the number 2219187911. Which chunked version keeps every digit in the same order? (a) 229 187 911 (b) 221 918 87911 (c) 221 918 7911 (d) 221 917 8911
28. 28.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
29. 29.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
30. 30.🔢 You want to remember the number 497135815204. Which chunked version keeps every digit in the same order? (a) 4973 5815 204 (b) 4971 3581 5204 (c) 4971 5381 5204 (d) 4971 3588 15204
31. 31.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
32. 32.📅 The digits 01031960 are a date: day, month, year. Which chunking shows the date? (a) 01/03/1960 (b) 01/0319/60 (c) 010/319/60 (d) 0103/19/60
33. 33.📅 The digits 04032011 are a date: day, month, year. Which chunking shows the date? (a) 040/320/11 (b) 0403/20/11 (c) 04/0320/11 (d) 04/03/2011
34. 34.🔢 You want to remember the number 591756034003. Which chunked version keeps every digit in the same order? (a) 5975 6034 003 (b) 5991 7560 34003 (c) 5917 5603 4003 (d) 5917 6503 4003
35. 35.🔢 You want to remember the number 727218227. Which chunked version keeps every digit in the same order? (a) 772 218 227 (b) 727 182 27 (c) 727 218 227 (d) 722 721 8227
36. 36.🔢 You want to remember the number 520288060971. Which chunked version keeps every digit in the same order? (a) 5208 8060 971 (b) 5208 2806 0971 (c) 5200 2880 60971 (d) 5202 8806 0971
37. 37.🔢 You want to remember the number 914818672. Which chunked version keeps every digit in the same order? (a) 914 818 8672 (b) 918 186 72 (c) 914 818 672 (d) 914 188 672
38. 38.🔢 You want to remember the number 9856205208. Which chunked version keeps every digit in the same order? (a) 986 205 208 (b) 958 620 5208 (c) 985 562 05208 (d) 985 620 5208
39. 39.📅 The digits 26032006 are a date: day, month, year. Which chunking shows the date? (a) 2603/20/06 (b) 26/03/2006 (c) 260/320/06 (d) 26/0320/06
40. 40.📅 The digits 07011983 are a date: day, month, year. Which chunking shows the date? (a) 070/119/83 (b) 0701/19/83 (c) 07/01/1983 (d) 07/0119/83

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